/*
 * Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the Classpath exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

package com.sun.btrace.samples;

import java.lang.reflect.Field;

import static com.sun.btrace.BTraceUtils.*;

@BTrace
public class FinalizeTracker {
    private static Field fdField =
            field("java.io.FileInputStream", "fd");

    @OnTimer(4000)
    public static void ontimer() {
        runFinalization();
    }

    @OnMethod(
            clazz = "java.io.FileInputStream",
            method = "finalize"
    )
    public static void onfinalize(@Self Object me) {
        println(concat("finalizing ", str(me)));
        printFields(me);
        printFields(get(fdField, me));
        println("==========");
    }

    @OnMethod(
            clazz = "java.io.FileInputStream",
            method = "close"
    )
    public static void onclose(@Self Object me) {
        println(concat("closing ", str(me)));
        println(concat("thread: ", str(currentThread())));
        printFields(me);
        printFields(get(fdField, me));
        jstack();
        println("=============");
    }
}
